Electric bell



April 13 1925.4 1,580,595

A. C. GAYNOR ET AL Filed April 20, 1925 Patented Apr. i3, i925. i i i l Ullllvll@ Si'iliii iivi'lltl'lii ARTHUR C. GAYNOR AND EDW'N Gr. GAYNGR, 0l? STRATFORD, CONNECTCUT; SAID EDWIN Gr. GAYNOR, ASSGNQR TQ SAD ARTHUR C. GAYNOR.

ELECTRIC BELL.

Application filed April 20, 1923. Serial No. 633,384.

To all whom z5 may concern: -frame is 'formed ot a sheet oi: metal cut and Be it known that we, ARTHUR C. GArNon bent to form a back and sides and posiand EDWIN G. GnYNon, citizens of the tioninglugs. The front kof the trame is United States, and residents ot Stratford, formed o'l` a strip or slab oi insulating matecounty oi Fairiield, State of Connecticut, rial having` a contact and binding screw. 60 have jointly invented certain new and use- An electiomagnet is mounted on the back ful Improvements.inlElectric Bells, oi which of the frame and connected to the binding the following is a specification. Screw and the centact. A striking or hami This invention relates to an electric bell mer arm operating` also as an armature is 1U ,and more particularly to an-electrin strilrmounted within the trame and is pivoted iny 65 ing` or ringing device for bells. notches in the sides of the ltrame by means in object of the invention is to provide ot lugs which `extend from 'the end of the a bell of simple and cheap construction havarm and are held in the notches by the ing a minimum of parts and requiringa Walls oi' the cover whenthe mechanism is .A minimum of connections and tasteninpgs in inserted into thev cover. The striking or 70 its assembly. Other objectsl oi' the inven-V Clapper arm projects through the cover and tion are toprovide a bell operating mech under the bell so as to strike the inner anism which requires a. small number oi edge of the bell when the mechanism is sot magnets for its operation, which may be mio Operationc readily assembled md taken apart and Reterring more particularly to the accom- 75 readily adjusted, and which forms a self panying)` drawings, the actuating mechanism contained unit in the cover for the mechembodying the invention is illustrated in anism. A further object ot the invention connection with a bell l0 mounted on a base is to provide a bell device in which the @X- 1Q,k of any usual or suitable construction. teyiolof the bell is not lsflgured by the rllhe actuating mechanism is mounted within S0 striking of the hammer. a cover le mounted on the base l2 in any lVith these and other objects in view the suitable manner as, tor example, by means invention comprises che device described and 0iE lugs 1G extending from the corners of the set forth in the following specification and Cover through openings 18 in the base. claims. The main elements oit the mechanism are 85 The various teatures of the invention are mounted on a frame 20, which is assembled` illustrated in the accompanying; drawings and mounted in the cover and one face of in which: which ts against the. side wall 2l ot the Fig. l is a perspectivey view oi. a bell decover le and is held tightly against the wall vice embodyinga 'form of the invention, the 2l. ot the cover by means ot a core 22 ot' an 90 cover of the actuating mechanism being reelectro-magnet 24 mounted on the baci; ot moved and indicated by dotted lines. the frame and spanning` the distance 'from' Fig. 2 is a top sectional view of the bell the back o'l' the frame to the opposite or rear taken on line 2--2 of Fig. 3. wall 25 ot the cover. rlhe frame 20 is 40 Fig. 3 is a vertical sectional view of 'the yiormed of a sheet 01"' metal, preferably brass, 95 device taken on line 3 3 of Fig'. 2. stamped to form a back portion 2G, a num- Fi'g. i is a side view, partly in section ot loer of yupper side members 28, lower side l a preferred form of striking hammer, and, members 30 and spacing` lugs 32 and 34 eX-, Fig. 5 is a 'front view of the hammer tending` from the back to the upper wall oii shown in Fig. l. the cover and to the base, respectively. The 100 In our present invention, the hammer opfront edges ot the side members and 30 erating or striking mechanism tor the bell are notched to receive a front plate or slab is mounted in a cover, which is mounted in ot insulating` material 346 notched to fit into any suitable manner on'a base to bring the the notches oic the side plates The frame hammer into proper striking position. The is shaped and adapted to into the front 105 various elements of the mechanism within part ot' the cover 'withthe slab 36 against the cover are mounted on a trame which tl .ll 2l and is held:tightly-` in position lits snugly into the cover and, when ,thus ist 'liront wall BO of the.

" e ietcoref fitted srvesmto hold the eleme' ofathe mechanism. in their proper' positiong The sheet of metal torniing the traine 26 is also bent to torni a pair Vot lugs or tlanges 38 and 40 on which is pivotally supported an armature arm 42 which extends under the 1Jell l0 and is provided with a striking hammer 44 positioned to strike the innerl edge ot the bell as the arm is vibrated. The hammer 44 may be mounted on the armature arm 42 in any suitable manner, preferably by .means ol a stem 45 projecting through and peened or headed over an opening in the e-nd of the arm. rv)lie hammer arm is pivoted on the lugs 38 and 40 by means of a pair oi lugs or projections 46 projecting sidewise from the end of the arm and titted into notches 48 in the flanges 38 and 40. lllhen the iif me is fitted into the cover 14 the open ends ot the notches 48 are closed by the side walls of the cover and held the armature arm in position.

The arniature arm 42 ni ed toward the liront portion 3G oli vthe trame by means ol a spring 50 mounted in a recess 52 in .the core On the lront face ot' the armature arm 4Q is mounted a Contact. leait or spring 54, attached to the arm at one end by means ot a rivet 56 and provided at ,the opposite, free end with a contact bead 58 which is brought, by the pressure of the spring 5 against a contact screw 60 mounted on .and extending through a bushing 62 inthe insu-latmg slab 36. The piiff'oted end ot the armature yarm 42 is provided with a pair of longitudinal slits Gand the position of the arm between these slits is bent backwardljf as at 64 to cause the free end ot the leaf to project forwardly from the face of the arm. The screw 60 projects Outwardlj7 through an opening 65 in the 4cover 14, from which it is .insulated by the slab 36, and is provided with a lock nut GG so arranged that the position ot the screw may be adjusted and locked.

The electro-magnet Q4 is connected to the bushing` 62 by means ot a wire 68 and, at its opposite end is connected by a wire TO to a bushing T2 mounted in the slab 86. A binding screw i' 4 is mounted in the bushing 72 and .extends outwardly through an opening 76 in lthecorer 14, y'from which .it is insulated by means ot a washer 'T8 o1"A insulating material. Through this wiring :an electrical connection 'is provided from a source ot' electricity through a lead wire 8O connected to the binding post 74 and through the wire 70, electroanagnet 24 and wire G8 to the screw Contact GO. lllhen the contact 58 touches ther screw contact 8O the circuit is completed through the lealc 54 and arm 42 to the cover 14 with which th`e'ar1n42 and frame 2G contact. The cover 14 is provided with a binding screw 82 to which a lead wire 84 may be connected to return the current to the source ot electrical energy. The electromagnet is thus energized, attracting the arm '42, acting as an armature, breaking the conact connection 58-G0, thus de-energizing the magnet and pern'iitting the armature arm to be thrown by the sprine' 50 'to again establish the connection through the contacts 58-60 and repeat the operations. rlhe arm 42 is thus set into rapid vibrations in the usnal manner and the bell rung.

is changes .oit construction could be made within the scope of our invention, it is intended that all matter contained in the above description or shown in the accon'ipanying` drawing be interpreted as illustrative and not in a limiting sense.

Having thus .described our invention, what we claim as new and desire to secure by Letters Patent is:

l. A device ot the kind described which comprises, a traine having a pair of lugs with notches opening endwise ot' said trame, a hammer armature arm extending through said frame and having projecting pivot pins extending into said notches and i'neans retaining said pins in said notches.

2. A device of the lrind described which comprises, a traine having a pair oit lugs with notches opening endwise ot said trame, a hammer armature arm extending through said frame and having projecting pivot pins extending into said notches, and a .cover n ting over said trame and closing the ends of said notches.

3. A device of the kind .described which comprises, a fra-me having a` pair of lugs with notches opening endwise of said frame, a hammer armature arm extending through said frame and having projecting pivot pins extending into said notches, an electromagnet mounted on one face ot' said frame, a spring between said electromagnet and said armature arm, and a cover enclosing said frame and electro-magnet and closing` the ends of said notches.

4. A device of the type described which comprises, a hollow, channel shaped trame, an electro-magnet mounted on the outer surface of one side of said frame, an arma ture pivoted to, and extending within, said frame, an insulated contact on said trame, .a spring pressing said armature against said cont-act, and a connection between said contact and one end of the winding ci said electro-magnet.

5. A device of the type described which comprises, a cover, a trame mounted in said cover, said traine having a pivot notch, an armature arm extending within said :trame and pivoted in said notch, an electro-magnet mounted on said :traine within said cover, an insulated contact on said frame connected to said electro-magnet, a contact on said armature arm and a spring between said magnet and said armature arm pressn ing said contacts together.

6. A device of the type described which lll) lit)

comprises, a frame having a met-allic'bacl; and sides and a front of insulating material,- a pair of notches in one end of said sides, an armature arm extending through Said frame and having pivot pins mounted in said notches, means retaining said pins in said notches, an electro-magnet mounted on the back of said frame, terminals on said insulating front connected to said electromagnet, one of said terminals having a contact point, a spring between said electromagnet and said arm pressing said armature arm to said contact point and an electrical connection from said armature arm.

7. A device of the type described which comprises, a cover, a frame fitting the lfront portion of said cover, an electro-magnet extending between said frame and the rear wall of said cover, an armature arm pivoted in notches in one end of said frame and extending through said frame and the opposite end of said cover, a. spring between said electromagnet and said arm, insulated terminals on said frame connected to said electro-magnet, one of said terminals having a contact point contacted by said armature arm in a direction opposite said spring, the other contact having a binding post, and a binding post on said cover in electrical connection 'with said armature arm.

8. A device of the type described which comprises, a channel shaped frame having a pair of aligned notches in opposite edges at one end, a hammer armature arm extend*- ing through the channel of said frame and having pintles journaled in said notches, means retaining said pintles in said notches, an electro-magnet mounted on an external face of said Jframe, and a spring confined between said magnet and said hammer arma-ture arm.

9. A device of the type described which comprises, a channel shaped frame having a pair of aligned'notches in opposite edges at one end, a hammer armature arm extending through the channel of said frame and having pintles journaled in said notches, an electro-magnet mounted on an external face of said frame, a spring conined between said magnet and said hammer armature arm, and a cover enclosing the walls of said fra-me, and the outer end of said electromagnet.

' ARTHUR C. GAYNOR.

ED. G. GAYNOR. 

